| Viper1 vs King | 15–7 | 68.18% |
| Viper1 vs Steve | 8–12 | 40.00% |
| Viper1 vs Lars | 7–4 | 63.64% |
| Viper1 vs Armor King | 2–9 | 18.18% |
| Viper1 vs Eddy | 5–5 | 50.00% |
| Viper1 vs Reina | 8–1 | 88.89% |
| Viper1 vs Paul | 6–2 | 75.00% |
| Viper1 vs Bryan | 4–4 | 50.00% |
| Viper1 vs Kazuya | 5–3 | 62.50% |
| Viper1 vs Leo | 3–5 | 37.50% |
| Viper1 vs Azucena | 2–6 | 25.00% |
| Viper1 vs Yoshimitsu | 4–3 | 57.14% |
| Viper1 vs Victor | 4–3 | 57.14% |
| Viper1 vs Feng | 1–5 | 16.67% |
| Viper1 vs Dragunov | 3–3 | 50.00% |
| Viper1 vs Alisa | 4–2 | 66.67% |
| Viper1 vs Nina | 5–1 | 83.33% |
| Viper1 vs Lee | 6–0 | 100.00% |
| Viper1 vs Xiaoyu | 3–2 | 60.00% |
| Viper1 vs Jin | 2–3 | 40.00% |
| Viper1 vs Anna | 3–2 | 60.00% |
| Viper1 vs Hwoarang | 3–1 | 75.00% |
| Viper1 vs Jack-8 | 3–1 | 75.00% |
| Viper1 vs Kuma | 4–0 | 100.00% |
| Viper1 vs Lidia | 2–2 | 50.00% |
| Viper1 vs Law | 1–2 | 33.33% |
| Viper1 vs Asuka | 2–1 | 66.67% |
| Viper1 vs Lili | 1–2 | 33.33% |
| Viper1 vs Clive | 2–1 | 66.67% |
| Viper1 vs Devil Jin | 2–0 | 100.00% |
| Viper1 vs Shaheen | 1–0 | 100.00% |
| Viper1 vs Jun | 1–0 | 100.00% |
| Viper1 vs Raven | 1–0 | 100.00% |
| Viper1 vs Heihachi | 1–0 | 100.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.